In a pressure cooker, put the dal, onion, ginger and garlic pastes, the masala powders and the tomatoes. Add water to cover the dal and season with salt.
Cook this for about 3 whistles and turn off the heat.The dal should be cooked through and will be soft.
Once the pressure is off, and you can open up the cooker, heat some oil in a non-stick pan.
Add the mustard seeds and cumin seeds. Once the seeds start spluttering add the cooked dal.
Season with more salt if needed and finally add the coriander leaves.
Give it all a good stir and you have a bowl of delicious dal curry to serve.
